diff --git a/tests/kernel/context/boards/nrf5340bsim_nrf5340_cpunet.conf b/tests/kernel/context/boards/nrf5340bsim_nrf5340_cpunet.conf
new file mode 100644
index 00000000000000..e09415f38f7af5
--- /dev/null
+++ b/tests/kernel/context/boards/nrf5340bsim_nrf5340_cpunet.conf
@@ -0,0 +1 @@
+CONFIG_NRF53_SYNC_RTC=n